Carbon cycling and balance in a traditional cardamom based agroforestry system of Sikkim Himalayas
| Autor: | N. Bijayalaxmi Devi, Nima Tshering Lepcha |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Ecology Agroforestry 04 agricultural and veterinary sciences Plant Science Soil carbon Seasonality Carbon sequestration medicine.disease 010603 evolutionary biology 01 natural sciences Bulk density Carbon cycle Basal area Soil pH 040103 agronomy & agriculture medicine 0401 agriculture forestry and fisheries Environmental science Ecosystem Ecology Evolution Behavior and Systematics |
| Zdroj: | Tropical Ecology. 61:527-537 |
| ISSN: | 2661-8982 0564-3295 |
| Popis: | The pattern of carbon cycling dynamics in a 20 year old traditional cardamom agroforestry system located at Sikkim Himalaya was studied for two years to understand the dynamics of different carbon pools and carbon emission patterns in the system. Total biomass (aboveground + belowground) and carbon in trees were 81.91 ± 9.04 Mg ha−1 and 38.47 ± 4.25 Mg C ha−1, respectively and contributed 27% of the total ecosystem carbon. Herbs and detritus carbon were 2.34 ± 0.24 Mg C ha−1 and 3.64 ± 0.20 Mg C ha−1 respectively while cumulative soil organic carbon (SOC) stock ranged from 89.90 ± 2.16 (January) to 117.91 ± 3.12 Mg C ha−1(August) in the 0–45 cm soil layer. Seasonal microbial biomass carbon (MBC) stock varied from 501.34 to 857.77 µg g−1 while annual CO2 emission (SR) ranged from 112.11–219.29 mg CO2 m−2 h−1. SOC, MBC and SR exhibited strong seasonality with a peak value in rainy and least in the winter season. Carbon density of trees exhibited a positive and significant relation with tree density (P |
| Databáze: | OpenAIRE |
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